nVent A12-2424E2 - APO Flat Opaque Screw Cover with Extension Type 4X, 23.74x23.74x11.65, Lt Gray, Fiberglass, E2
nVent

A12-2424E2

UPC: 635394001687

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Installation Instructions

Contact for Pricing

Overview

The nVent APO2424A12E2 APO Flat Opaque Screw Cover with Extension is a high-performance fiberglass enclosure accessory engineered for extreme corrosive environments where electrical safety and equipment protection are critical. Designed as a Type 4X rated solution, this screw cover provides a durable, non-metallic barrier over junction box openings, preventing moisture, dust, and chemical ingress while maintaining full operational integrity. Manufactured by nVent, a global leader in thermal management and electrical protection solutions, the APO2424A12E2 is built to meet the rigorous demands of industrial, commercial, and utility applications where long-term reliability is non-negotiable. This fiberglass screw cover is specifically formulated for use in highly corrosive atmospheres, including chemical processing plants, offshore oil and gas platforms, wastewater treatment facilities, and coastal installations. Its opaque design ensures light protection for sensitive components, while the extension design allows for flush mounting over junction box openings, reducing the risk of snagging or damage during maintenance. The light gray color provides high visibility and UV resistance, ensuring consistent performance even under prolonged sun exposure. Key applications include insulated electrical junction boxes, terminal wiring compartments, instrument housings, and control enclosures. The APO2424A12E2 is ideal for protecting wiring terminations, bus bars, and sensitive instrumentation from environmental contaminants such as salt spray, acids, alkalis, and industrial pollutants. Its fiberglass construction delivers exceptional dielectric strength and thermal stability, making it suitable for both indoor and outdoor installations in harsh climates. Professionals in electrical engineering, instrumentation, and facility management rely on nVent’s APO series for its proven track record in reliability and compliance with international standards. The Type 4X rating confirms resistance to corrosion, water, and dust, ensuring uninterrupted operation in even the most challenging conditions. Installation is straightforward, with the screw cover designed to fit standard junction box openings, and secure attachment via stainless steel hardware (sold separately) for added corrosion resistance. Choosing the right enclosure accessory is essential to maintaining system integrity and safety. The nVent APO2424A12E2 offers a cost-effective, long-lasting solution that reduces downtime and maintenance costs by protecting critical electrical components from premature failure. With a US-made construction and backed by nVent’s global service network, this fiberglass screw cover is a trusted choice for engineers and contractors who demand performance without compromise.
  • Available sized from 7x6 (178x152mm) to 24x24 (610x610mm)
  • Enclosures are maintenance free and corrosion resistant
  • Bases and covers are made from hot compression molded halogen free, self extinguishing fiberglass reinforced polyester (FRP) that can withstand continuous temperatures up to 158°F (70°C) and momentary exposure to 302°F (150°C)
  • All enclosures can be easily modified to customer specifications
  • Gaskets are made from continuously poured polyurethane foam
  • Brass M4 threaded inserts are factory installed for mounting plate attachment
  • 4 to 6 bosses suitable for M6 threaded inserts are molded into the base (dependant on enclosure size).
  • Maintain UL / CSA Type 4x with up to 5 extension collars
  • Extensions allow deeper enclosure depths

Specifications

Application
Corrosive Environments; Controls and Drives
Color
Light Gray
Color Code
RAL 7035
Depth
296 mm
Depth
11.65 in
Finish
Smooth Matte
Height
603 mm
Height
23.74 in
Material
Fiberglass
Product Family
APO
Protection Rating
NEMA Type 3
Type
Fiberglass and Thermoplastic Wall Mounted Industrial Enclosures
Weight
25.5 lb
Width
23.74 in
Width
603 mm
Panel 6.9 x 4.9 - Fits Encl. 8 x 6 - Alum

14A0705

Panel 6.9 x 4.9 - Fits Encl. 8 x 6 - Alum
Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.

BX4

Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.
Escutcheon black type B for Sircover 125-630A

44095015

Escutcheon black type B for Sircover 125-630A
External operation handle 0-1 type S01 Red Nema 4,4x

140E2911

External operation handle 0-1 type S01 Red Nema 4,4x
1/2 Inch, 90 Degree, Two-Piece Liquidtight Non-Metallic Fitting, UL E32447, Temperatures up to 107 Degrees C, Nitril Rubber O-Ring, PVC, Grey

LT20D-NEW

1/2 Inch, 90 Degree, Two-Piece Liquidtight Non-Metallic Fitting, UL E32447, Temperatures up to 107 Degrees C, Nitril Rubber O-Ring, PVC, Grey
1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey

LN43DA

1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey
Cord Grip with NPT Threads, Locknut Included, NPT Thread Size 3/8 Inch, Cable Range 0.181 Inch/4.6mm to 0.312 Inch/7.9mm, Hole Clearance 0.670 Inch/17.0mm, Thread Length 0.53 Inch/13.5mm, IP68 Rating, Nylon, Black

LH38

Cord Grip with NPT Threads, Locknut Included, NPT Thread Size 3/8 Inch, Cable Range 0.181 Inch/4.6mm to 0.312 Inch/7.9mm, Hole Clearance 0.670 Inch/17.0mm, Thread Length 0.53 Inch/13.5mm, IP68 Rating, Nylon, Black
EP-RJG-M20-BL-A

1SNG618003R0000

EP-RJG-M20-BL-A
5,90" x 5,90" filter fan - 24Vdc - 20.6 cfm - RAL 9005 - Type 3R - IP55

FF12D24NN53

5,90" x 5,90" filter fan - 24Vdc - 20.6 cfm - RAL 9005 - Type 3R - IP55
12,80" x 12,80" filter fan - 115Vac - 285.3 cfm - RAL 7035 - Type 12

FF20A115UE1

12,80" x 12,80" filter fan - 115Vac - 285.3 cfm - RAL 7035 - Type 12

How to Install the A12-2424E2 Enclosure

This guide provides step-by-step instructions for installing the A12-2424E2 enclosure, ensuring proper mounting, wiring, and initial setup.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Wire connectors, Gaskets

  1. Mount the enclosure

    Secure the A12-2424E2 enclosure to a stable surface using the provided mounting screws. Ensure that the enclosure is level and firmly attached.

  2. Connect the wiring

    Strip the ends of the wires and connect them to the appropriate terminals inside the enclosure. Use wire connectors to secure the connections and ensure they are tight.

  3. Seal the enclosure

    Install the gaskets around the edges of the enclosure cover to maintain its IP67 rating. Ensure that the cover is properly aligned and securely fastened.

  4. Perform initial configuration

    Power on the enclosure and use a multimeter to verify that all connections are functioning correctly. Adjust settings as necessary based on your application requirements.

  5. Calibrate the system

    Follow the manufacturer's calibration procedures to ensure that the enclosure operates within specified parameters. Make any necessary adjustments to the configuration.

Frequently Asked Questions about nVent

What industries and applications are nVent products used for?

nVent products are engineered for critical infrastructure and industrial applications across multiple demanding sectors. Key markets include Construction, Data Centers, Defense, Healthcare, Mining, Oil & Gas Refineries, Power Plants, Rail/Transit, Renewable Energy, Security, Ship Building, Steel Mills, Telecom, and Utilities. Their solutions are designed to withstand extreme environmental conditions, with temperature ranges from -55°C to 105°C and specialized features like UV resistance, oil resistance, and flame resistance.

What environmental ratings do nVent products have?

nVent enclosures feature comprehensive environmental ratings, including UL 508A, CSA, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications. They are rated IEC 60529 IP66, providing robust protection against dust, water, and corrosion in both indoor and outdoor environments. These products operate effectively in temperatures ranging from -40°F to 266°F, with enhanced UV inhibitors for outdoor weathering and oil-resistant gaskets for superior sealing.

What accessories are available for nVent products?

nVent offers a comprehensive range of accessories across multiple product lines, including EMC accessories like bonding cable clamps and strain reliefs, inline accessories such as lock inserts and mounting brackets, CONCEPT accessories including panel conversion kits and rack-mount angles, and seismic accessories for specialized mounting requirements. Key accessory categories include grounding kits, DIN rail mounting solutions, panel supports, handles, and various mounting hardware compatible with different enclosure types.

What certifications and standards do nVent products comply with?

nVent products meet critical international certifications including UL (United States), CSA (Canada), CE (European Community), and EAC (Russia). Our products are designed to comply with rigorous industrial standards such as NEMA enclosure ratings, IEC 60529 IP ratings, and international safety standards across multiple industrial markets including oil & gas, power, manufacturing, and infrastructure.

What is nVent's warranty policy?

nVent offers a standard 18-month warranty from invoicing date for most automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Warranty coverage includes repair or replacement at nVent's discretion, with certain conditions such as authorized service repairs and operation within designed capacity limits.

What technical support does nVent offer?

nVent offers comprehensive technical support through multiple global contact centers across North America, South America, Europe, Middle East, India, and Asia. Customers can reach technical experts by phone at regional numbers, with the North American headquarters in Minneapolis, MN providing primary support at +1.763.421.2240. Additionally, nVent provides online support resources through their website, including CAD drawing downloads and an 'Ask The Expert' feature to assist with product technical inquiries.